fsi: core: Add check for master property no-scan-on-init
Prior to scanning a master check if the optional property no-scan-on-init is present. If it is then avoid scanning. This is necessary in cases where a master scan could interfere with another FSI master on the same bus. Signed-off-by: Christopher Bostic <cbostic@linux.vnet.ibm.com> Acked-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -901,6 +901,7 @@ static DEVICE_ATTR(break, 0200, NULL, master_break_store);
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int fsi_master_register(struct fsi_master *master)
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{
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int rc;
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struct device_node *np;
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if (!master)
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return -EINVAL;
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@ -928,7 +929,9 @@ int fsi_master_register(struct fsi_master *master)
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return rc;
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}
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fsi_master_scan(master);
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np = dev_of_node(&master->dev);
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if (!of_property_read_bool(np, "no-scan-on-init"))
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fsi_master_scan(master);
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return 0;
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}
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